expert Set 11 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [15, _] → [10, 5, 10]

Show answer

Answer: Row2[2]=15, Row1[1]=30

SubType
number-pyramid
Difficulty
expert
Levels
  • [30]
  • [15,15]
  • [10,5,10]
Base
  • 10
  • 5
  • 10
TopValue
30
HiddenCells
  • {"r":1,"c":1,"v":15}
  • {"r":0,"c":0,"v":30}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [3, _] → [_, 1, 8]

Show answer

Answer: Row2[2]=9, Row3[1]=2

SubType
number-pyramid
Difficulty
expert
Levels
  • [12]
  • [3,9]
  • [2,1,8]
Base
  • 2
  • 1
  • 8
TopValue
12
HiddenCells
  • {"r":1,"c":1,"v":9}
  • {"r":2,"c":0,"v":2}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [34] → [19, 15] → [10, _, _]

Show answer

Answer: Row3[2]=9, Row3[3]=6

SubType
number-pyramid
Difficulty
expert
Levels
  • [34]
  • [19,15]
  • [10,9,6]
Base
  • 10
  • 9
  • 6
TopValue
34
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":2,"v":6}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [12] → [_, 7] → [2, _, 4]

Show answer

Answer: Row3[2]=3, Row2[1]=5

SubType
number-pyramid
Difficulty
expert
Levels
  • [12]
  • [5,7]
  • [2,3,4]
Base
  • 2
  • 3
  • 4
TopValue
12
HiddenCells
  • {"r":2,"c":1,"v":3}
  • {"r":1,"c":0,"v":5}